Mud Flaps

Sagging butt cheeks with age and weight loss such that a pencil could be held in the crack between back upper thigh and bum. Vastly superior to all alternative definitions for the sheer ubiquity of the phenomena but also because legs are the human equivalent to wheels and human mud flaps are therefore perfect homologues to vehicular ones. Entered Urban lexicon in Spinal Tap's hit Big Bottom in which this second chorus appears:

Big bottom, Big bottom
Talk about mud flaps
My gal's got 'em.
Big bottom
Drive me out of my mind.
How can I leave this behind?

by Jellybean Sherbert September 15, 2008

Mud flaps

Noun
Matching tattoos located on the backside of the upper thigh on each leg, just below the buttocks. It is the basic stepdaughter of the tramp stamp, with a ribbon tied in a bow being the most common design.

"I thought she was real original until she turned around and I saw she had mud flaps."

by buckett_t._great December 18, 2019

mud flap

what you would call a gay man's balls

yeah...get it...mud flaps..hehehe

by bill brasky April 20, 2005

Mud Flap

The foreskin of a gay male.

He has a nasty Mud Flap

by Xray_man69 September 14, 2006

mud flaps

when your out riding four-wheelers and a girls flanges are flopping on the side of the seat colecting dust , and turning into mud.

janis your mud flaps are hanging down.

by mud dobber June 14, 2009

mud flaps

a description of the female vagina after excessive sexual permiscuousness

man, that chick is fine.
nah, man, my boy says she's got a nasty ass-pair of mud flaps!

by somechick June 09, 2006

Mud flap

The male scrotum (balls); What men use to keep mud (shit) off of ones penis while dropping a wicked doo-doo bomb.

Man, I had some wicked diarrhea last night; I'd have doo-doo all over dick, if it weren't for my mud flap!

by billy_banana May 15, 2010